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Waqar Ahmed

Software Engineer

I take AI SaaS products from idea to production — owning everything from database architecture to frontend, deployment, and LLM integrations.

Software engineer specializing in multi-tenant SaaS architecture and AI-powered products. I design and build systems that scale — from PostgreSQL schema to React UI.

Selected Impact

5+

Production SaaS products built

3,200+

GitHub contributions in the last year

300+

Clients served through freelance work

Experience

Where I've worked

May 2026 — Present

Founder

BotraAI — Remote

  • Built a multi-tenant AI chatbot SaaS from scratch — Next.js, TypeScript, PostgreSQL, pgvector
  • Engineered hybrid RAG pipeline (pgvector + BM25/RRF) with multi-provider LLM orchestration (GPT-4o, Claude, Gemini)
  • Designed PostgreSQL schema with row-level security for tenant data isolation
  • Integrated Stripe billing, Google Calendar scheduling, and HubSpot CRM
  • Containerized the full stack with Docker and deployed to production

Oct 2025 — July 2026

Software Engineer

ONEUPAI SOLUTIONS, INC. — Remote — Orlando, FL, USA

  • Developed production multi-tenant SaaS applications with Next.js, TypeScript, NestJS, PostgreSQL, Redis, and BullMQ
  • Built Stripe webhook reconciliation pipelines on Redis-backed job queues with idempotency and dead-letter handling
  • Architected a monorepo that powered dynamic template provisioning with tenant isolation at the application layer
  • Established CI/CD pipelines, automated testing, and deployment infrastructure

July 2025 — September 2025

Software Engineer

AYKAYS DIGITAL AGENCY — Karachi, Pakistan (Hybrid)

  • Built and maintained client-facing web applications using React, Next.js, and Node.js
  • Delivered full-stack projects on schedule for international clients across the US and Europe
  • Collaborated in an agile team handling multiple concurrent client engagements

Projects

What I've built

Screenshot of BotraAIScreenshot of BotraAI (alternate view)

Flagship

BotraAI

Founding Engineer — Architecture, Full-Stack & DevOps

Production multi-tenant AI chatbot SaaS — hybrid search, multi-LLM orchestration, CRM integrations. Solely responsible for architecture, reliability, and end-to-end delivery.

  • Architected and shipped the entire platform solo — Next.js/React frontend, Node.js/TypeScript backend, PostgreSQL data layer — serving paying business tenants in production
  • Engineered a hybrid retrieval pipeline combining pgvector embeddings with BM25 keyword search via reciprocal rank fusion (RRF), delivering reliable results across short and long-form queries
  • Built multi-provider LLM orchestration layer supporting GPT-4o, Claude, and Gemini with automatic failover — ensuring chat availability during provider outages
  • Integrated Google Calendar and HubSpot CRM with tenant-level data isolation and role-based access control, enforcing strict multi-tenant boundaries
Next.jsReactNode.jsTypeScriptPostgreSQLpgvectorStripeDocker
Live Demo ↗
Screenshot of OneUpAI PlatformScreenshot of OneUpAI Platform (alternate view)

OneUpAI Platform

Lead Engineer — Architecture & Platform

Multi-tenant website builder SaaS with AI-powered chat, Stripe billing, and Google Calendar sync. Architected the monorepo, async job pipelines, and tenant isolation.

  • Architected a production monorepo powering dynamic template provisioning and multi-tenant chat, enforcing tenant data isolation at the application layer across all services
  • Designed resilient Stripe webhook processing and revenue reconciliation pipelines on Redis-backed BullMQ job queues — handling retries, idempotency, and dead-letter queues for failed events
  • Built cross-tenant Google Calendar booking synchronization with conflict detection, ensuring appointments never double-book across tenant boundaries
Next.jsTypeScriptNestJSPrismaPostgreSQL
Live Demo ↗
Screenshot of WonkerbotsScreenshot of Wonkerbots (alternate view)

Wonkerbots

Backend Engineer — Billing & Marketplace Infrastructure

AI agent marketplace with per-run transparent pricing, Stripe credit billing, and a pipeline that lets independent agents compete on quality and price.

  • Designed and built the marketplace backend from scratch — agent registration, discovery, execution tracking, and transparent per-run pricing with real-time cost breakdowns
  • Implemented Stripe-integrated credit system with prepaid billing, automatic top-up triggers, and usage-based metering — processing transactions across the agent marketplace
  • Architected PostgreSQL schema for multi-agent marketplace data model with normalized pricing tables, execution logs, and user credit ledgers ensuring transactional integrity
Node.jsTypeScriptPostgreSQLPrismaStripe
Live Demo ↗

Skills

Technologies

Frontend

  • React
  • Next.js
  • TypeScript
  • JavaScript
  • Tailwind CSS
  • HTML / CSS

Backend

  • Node.js
  • Express.js
  • NestJS
  • REST APIs
  • GraphQL
  • Prisma ORM
  • Authentication

Databases

  • PostgreSQL
  • Supabase
  • MongoDB
  • Redis
  • Database Design

Cloud & DevOps

  • Docker
  • Vercel
  • AWS
  • CI/CD
  • GitHub Actions

AI & ML

  • OpenAI GPT-4
  • RAG Pipelines
  • pgvector
  • LangChain
  • Prompt Engineering
  • LLM Integration

About

Engineering mindset

Software engineer with 3+ years building production SaaS platforms. I specialize in multi-tenant architecture, full-stack TypeScript development, and AI/LLM integrations. I've architected platforms serving 100+ businesses, designed PostgreSQL schemas for complex multi-tenant systems, and built RAG pipelines that reduced AI hallucination by 80%. I write code that is tested, reviewed, and deployed through CI/CD. Looking for a team that values system design, engineering rigor, and products that scale.

Education

BSCS — SZABIST University, 2022 — 2026

Looking for

  • Remote-first startups
  • Product companies
  • AI/ML engineering teams

Contact

Questions? Start with my AI assistant.

It can answer questions about my work, schedule a Google Meet, or connect you with me directly. Powered by BotraAI — a platform I built.

Ask Wiz

My AI assistant can answer questions about my projects, experience, or availability — or help schedule a meeting.

Try asking

Powered by BotraAI — a platform I built
Emailwaqaras.dev@gmail.comLinkedInlinkedin.com/in/waqarasGitHubgithub.com/waqaras1ResumeDownload PDF